Rheostat
Product Code : SCL-CL-11867
Rheostat (SKU SCL-CL-11867) is a high-power 10 Ω variable resistor for extra-low and low-voltage circuits, used to set and limit current in physics and electrical practicals. Its impact-resistant housing carries built-in grounding terminals and 4 mm safety sockets. As a school lab rheostat in India, it also serves college and polytechnic laboratories. Each unit is manufactured in the Science Lab Supplies works on Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and priced there for schools, colleges, tender contractors and distributors.
Specifications
The 10 Ω rheostat’s electrical ratings and fittings are listed one per row below. In short, it carries 5.7 A continuously or 8.0 A for 15 minutes, handles 320 W continuously or 640 W for 15 minutes, holds ±10% of nominal resistance and is rated for 600 V.
| Specification | Value |
|---|---|
| SKU | SCL-CL-11867 |
| Type | High-power rheostat |
| Intended circuits | Extra-low and low-voltage circuits |
| Resistance | 10 Ω |
| Resistance tolerance | ±10% of nominal |
| Constant current | Up to 5.7 A |
| Short-time current | 8.0 A (15 minutes) |
| Permissible power, continuous | 320 W |
| Permissible power, short-time | 640 W (15 minutes) |
| Permissible voltage | 600 V |
| Connection | 4 mm safety sockets |
| Housing | Impact-resistant |
| Earthing | Built-in grounding terminals |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Rheostat
Connected in series, the resistor varies the current through a circuit; wired as a potential divider, it gives an adjustable voltage. With 5.7 A continuous rating it can also act as a load for power supplies, covering electricity practicals from Class 10 to undergraduate and diploma level.
- Class 10 and Class 12 physics: taking current and voltage readings to verify Ohm's law.
- Drawing V–I characteristics of resistors and lamps.
- Controlling current in experiments on the Meter Bridge or Wheatstone Bridge With Pencil Jockey and the Potentiometer with Jockey Pencil.
- B.Sc., polytechnic and basic electrical engineering labs: loading and testing low-voltage supplies.
At high power the resistance element heats up, and the 600 V rating calls for care: use it under supervision, keep the grounding terminals connected and switch off before rewiring.
Standard Scope of Supply
The unit is supplied as a single rheostat as described above, in its impact-resistant housing with the 4 mm safety sockets and grounding terminals. Connecting leads, meters or a power supply are separate items that can be listed on the quotation.
Packing, MOQ and Lead Time
Quotations are prepared for one unit or a full laboratory quantity, and each sets out packing, delivery time and price for the number you request. Meters, leads and power supplies can be combined in the same request when you are building an electricity and magnetism lab kit for schools.
Science Lab Supplies, a registered exporter holding an Importer-Exporter Code, can ship to buyers in the Philippines, Nepal, Bangladesh, Zambia, Rwanda and South Africa. Rheostat prices are sent on request from the contact page; the enquiry cart holds several electrical items for one reply, and the lab tender page covers purchases made by tender.
Frequently Asked Questions
What current can this 10 ohm rheostat carry?
It carries up to 5.7 A continuously and 8.0 A for 15 minutes, with permissible power of 320 W continuous or 640 W for 15 minutes, so the short-time ratings should not be used for long runs.
How is it connected in a circuit?
Through 4 mm safety sockets, which accept standard safety leads. Built-in grounding terminals allow the impact-resistant housing to be earthed before the circuit is switched on, as the safety note on this page advises.
Is Science Lab Supplies the manufacturer or a trader?
This high-power rheostat is produced in the Science Lab Supplies factory at Saha, Ambala, so the company is its manufacturer. Buyers deal directly with the maker for pricing, packing and supply.
How accurate is the resistance value?
The nominal 10 Ω value is held within ±10%, which suits current control and loading in teaching circuits; for exact readings, measure the current and voltage with meters in the circuit itself.
Related Electrical Measurement Items
A current-control circuit needs a source, meters and a variable resistance. These items complete that bench for Ohm’s law and characteristic-curve practicals, from bench power supplies and analog meters to two slide-wire rheostats, and any of them can be quoted together with this unit.
- Rheostat Circuits Kit — panel-mounted spare component for the Circuits Kit.
- AC/DC Laboratory Power Supply — regulated 1–15 V DC and AC outputs at up to 10 A, with 4 mm connections.
- High-Current DC Power Supply — 0–16 V regulated DC with digital display, usable as a constant-voltage or constant-current source.
- Ammeter — analog 0–10 A scale with 0.01 A resolution, on an angled desk stand.
- Voltmeter — moving-coil bench voltmeter, 0–20 V DC with 0.01 V resolution.
- Rheostat, Constantine (Eureka) Wire — phosphor-bronze sliding contact, usable as a variable resistance or potential divider.
- Rheostat Nichrome Wire Groove Type — heavy brass slider block with a double contact system on a sliding rod.
Browse the full Physics Lab range, the Electrical and Electronics range for bridges, keys and resistance boxes, or all physics lab equipment.
Last updated: 22 October 2026
